1K09
Solution structure of BetaCore, A Designed Water Soluble Four-Stranded Antiparallel b-sheet Protein
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 0.4 mM BetaCore selectively-15N; pH3; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3 | ambient | 288 | ||
2 | 3D_15N-HSQC-NOESY | 0.4 mM BetaCore selectively-15N; pH3; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3 | ambient | 288 | ||
3 | 3D_15N-HSQC-TOCSY | 0.4 mM BetaCore selectively-15N; pH3; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3 | ambient | 288 | ||
4 | 15N-HSQC | 0.4 mM BetaCore selectively-15N; pH3; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3 | ambient | 288 | ||
5 | 15N-HSQC | 0.4 mM BetaCore selectively-15N; pH3; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3 | ambient | 278 | ||
6 | 2D TOCSY | 0.4 mM BetaCore selectively-15N; pH3; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3 | ambient | 288 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | INOVA | 600 |
2 | Varian | INOVA | 800 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing | The structures are based on a total of 195 restraints, 172 are NOE-derived distance constraints, 14 dihedral angle restraints, 9 distance restraints from hydrogen bonds | X-PLOR |
NMR Ensemble Information | |
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Conformer Selection Criteria | The submitted conformers are those with no constraint violations greater than 0.5 angstroms for NOEs and 5 degrees for dihedrals. They are also the ones with best covalent geometry. |
Conformers Calculated Total Number | 200 |
Conformers Submitted Total Number | 20 |
Representative Model | 8 (closest to the average) |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | structure solution | X-PLOR | 3.851 | Brunger |
2 | processing | NMRPipe | Delaglio | |
3 | data analysis | NMRView | 5.0 | Johnson |
4 | refinement | X-PLOR | 3.851 | Brunger |